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ZanzabumX [31]
3 years ago
11

Evaluate P(6, 6). 720 01 6

Mathematics
1 answer:
Vinvika [58]3 years ago
6 0
The correct answer is 720 I did this problem long time ago hope this helps :)

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5. Suppose that a particular candidate for public office is in fact favored by p = 48% of all registered voters. A polling organ
mart [117]

Answer:

Probability that the sample proportion will be greater than 0.5 is 0.8133.

Step-by-step explanation:

We are given that the a particular candidate for public office is in fact favored by p = 48% of all registered voters. A polling organization is about to take a simple random sample of voters and will use the sample proportion to estimate p.

Suppose that the polling organization takes a simple random sample of 500 voters.

<em>Let </em>\hat p<em> = sample proportion</em>

The z-score probability distribution for sample proportion is given by;

               Z = \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion

           p = population proportion = 48%

           n = sample of voters = 500

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, probability that the sample proportion will be greater than 0.5 is given by = P( \hat p > 0.50)

  P( \hat p > 0.50) = P( \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } < \frac{0.50-0.48}{\sqrt{\frac{0.50(1-0.50)}{500} } } ) = P(Z < 0.89) = 0.8133

<em>Now, in the z table the P(Z </em>\leq<em> x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 0.89 in the z table which has an area of 0.8133.</em>

Therefore, probability that the sample proportion will be greater than 0.50 is 0.8133.

6 0
3 years ago
Please could you help me with this. 132 people took a driving test. 80 people predicted they would pass. 64 people
GenaCL600 [577]
You have to do 64 x 3 and that equals 192 the answer is 192 if that was what you was asking! Respond if not!
3 0
2 years ago
under what circumstances is the ERR more appropriate method than IRR to evaluate a project ANSWER is C WHEN THE LENGTH OF THE PR
Vilka [71]

Answer:

yes

Step-by-step explanation:

3 0
3 years ago
A vending machine sells chips for $0.50 and candy bars for $1.00. If Jim spent $5.50 on snacks in the machine over the course of
m_a_m_a [10]

Answer:

can't be determined

Step-by-step explanation:

we would need to know the total number of bars/chips he brought

5 0
2 years ago
Find 51% of 140, Round to the nearest tenth if necessary.
viktelen [127]

Answer:71.4

Step-by-step explanation:140*51%

7 0
3 years ago
Read 2 more answers
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